Means for operating churn-dashers



(No Model.)

W. STUART. MEANS PGR OPERATING GHURN DASHERS.

No. 356.7374. YPentemted Jan. 25, 1887.

INVENTGR ,zmer Wzzar torney a n W%, am

r. wmzngm n c ihvrrnn rares i nrnnr @erica lTHAMEB vW. STUART, 0F CEDARC'ITY,

MISSOURI.

PSCZ-ICATON forming part ci' Letters Patent No. 356,737, dated January25, 1887.

Application ilcd November 1. 188

(No inodelJ .To all whom t may concern:

Be it known that I, l'rniiinn W. STUART, of Cedar City, in the county ofCallaway and State of Missouri, have invented certain new and usefulImprovements in Means for Vibrating C-hurn-Dashers; and l. do herebydeclare that thc following is a full, clear, and ex act descriptionthereof, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which forni part ol' thisspecification, in which- Figure lis a side elevation of niy improvedchurnonotor. Fig. 2 is a top plan view of the same with the upper braceor conneciingpiece removed, and Fig. 3 is a detail.

This invention relates to improvements in churn-motors, and has specialreference to the means i'or imparting to the dasher an alternate rotarymotion.

The invention consistsin the novel construction and arrangement of partshereinafter deseribed,and particularly specified in the claim.

A designates the base or platform of the inotor, of general rectangularforni. Frein one end ol' this base rises a vert-ical standard,B,ofsuitable height, and from near the opposite end oi the base rise twovertical similar standards or uprighls, C U, between which is journaleda friction-roller, D, which serves a pun pose hereinafter moreparticularly referred to. The roller l) is journaled between uprights Cat a point considerably higher than the top oi' a churn, X, which isplaced upon the platform during the operation of churning, and ishereinafter referred to.

E E designate two similar horizontal bracepieces which extend from therear upright, B, forward to and beyond the uprights C. The brace E issecured below the frictioirroller andthe brace E above the same. Thesebra-ees are of sufficient width at their front ends to be securedatltheir edges between uprights G C in any suitable manner. Freni theseuprights the braces extend inward toward upright B a short distance, andare then narrowed suddenly,forining two opposite notches, e. From thesenotches they extend rearward a short distance and are again narrowed,forming a second pair of notches, e. Frein these notches thebracesextend to upright B, to which they kept in one position on are secured.The notches e e ol braces E E serve a purpose hereinafter explained.

The front ends of braces E E' extend beyou d the uprights C, asdescribed, and are provided with central vertical longitudinal slots, F,in which rests and plays or rotates the upper end of the churn-flasherW.

G Gr designato levers pivoted at their lower ends on opposite sides ofupright B, near the lower end thereoiand extending upward from their pirots above the upper brace, E', and have handles or suitable handhelds ontheir upper ends, by which they are alternately reciprocated.

H designates a rope or cord having one end secured to one lever G at asuitable point. Thenceit extends to and takes one turn around the rollerD. Thenee it passes to and takes one turn around the upper end of thecylindrical handleof dasher YV. Then it runs back to the roller andtakes a second turn around the latter, rbut oppositely to its first turnthereon, and thence to the other lever G', where its remaining end issecured. By passing the cord around the roller, as described, betweenthe levers and churn-dasher handle, the cord is always the handle of thedasher, and cannot run up and down thereon as itis rotated, or cause thehandle to vibrate vertically in operation.

The levers G are kept in position on their pivots on upright B by thefollowing means: The base or head b of upright B is widened, (giving theupright somewhat the shape of an inverted letter TJ being ooncayed orrounded from the upper edges oi' the head1) inward, on each side, to theInain body of the upright, as shown. The lower ends oi the levers arerounded or beveled to correspond with the concaved notches of head Z1,above referred to, in which they play. The pivot of the levers is placedsufficiently above the head Z1 to permit the levers to be putin positionthereon or removed therefrom when brought horizontally inline with thebase A, as their side edges will then clear the upper edges of theconcave notches; but when in working position upon upright B, (having aplay in an are of about ninety degrees) if they should worl; outward ontheir pivots their rounded ends would en- IOU gage against the concavenotches of head b and prevent their escape from their pivots. Thisconstruction, while very useful and efficient, I do not wish to coniinemyself to, as the levers could be secured to the uprights in VariousWeltknown ways.

The dasher IV is provided at its lower end, which enters the churn, witha series of blades or beaters, preferably propeller-shaped blades, asshown, to agitate the cream.

The manner of using the motor is as follows: The churn X is placed uponbase A vertically beneath the inner ends of the slots F of pieces E E.The dasher XV is then placed in the churn, its handle extending upwardbetween the pieces E E,and resting against the inner ends of the slots FF thereof, being held securely therein by the rope H, as described. Thelevers are then reeiprocated alternately, and,through the medium of cordH,rotate the dasher in alternate directions in a very rapid and powerfulmanner. The notches e e of pieces E E may he used to regulate the lengthof thestroke of the levers by causing the inner ends of the levers toenter the same, which is easily done by the operator,and thus the numberof revolutions of the dasher may be equalized, thereby producing betterand more efn eient work. rPhe notches also save strain ou the operatorby obviating the necessity of his stopping the stroke of the levers bymain force, as'each lever, when engaged by a notch, will, through thecord H, instantly stop the movement of the other lever. The

churn Y. is preferably secured to the base A by suitable fasteningdevices forming no part of the present invention, so that it will notrock or move during the operation of churning.

W'here very large motors are to be constructed, the base A may bedispensed with and the uprights secured directly to the floor of thebuilding in which the motor is to be used.

I am aware that cords 'and levers have been used in various ways tooperate the dasher of a churn, therefore I do not claim such,broadly;but,

Having described 4my invention, what I claim, and desire to secure byLetters Patent, 1s-

Ina churn-motor, the combination7 with a suitable base, kof a rearupright and two front uprights having a frictionroller journaled betweenthem, and connecting-braces E Ff., having slots F,and stop-notches ee',with the levers G, pivoted at their lowerends to the rear upright,and adapted to be engaged in the notches c c', to limit their motion,and actuating-cord H, passing from onelever around the friction roller,around the dasher handle, which is engaged iu the slots F of the braces,and again around the roller in a contrary d rection to the oppositelever, all constructed and arranged to operate substantially in themanner and for the purpose described.

In testimony that I claim the foregoing as my own I affix my signaturesin presence of two witnesses.4

ITHAMER IV. STUART.

Vi tnesses:

J oHN L. RHoDns, JOHN W. REYNOLDS.

